#1
"""211
3
4
5
6666666
6
7"""
import decimal
import keyword

#if (5>3 and 5<10):
#   print(5>3)
#else:
#    print(5<10)

print(keyword.kwlist)

num1 = 10
num5 = "hello"
# num6 = 50
# num7 = 60
print(num1)
print(type(num1))
print(type(num5))

str1 = "hello"
# print(str1,end=" ")
# print(str1.upper())
# print(str1.lower())
str2 = "world"
print(str1,str2,end=" ")
print(str1,end=" ")
print(str1.upper(),str2.upper())

dict_demo = {"name": "zhangsan", "age": 18}
print(type(dict_demo))

#print("请输入一个数字")
# num3 = eval(input("请输入一个数字: "))
# print(num3)
# print(type(num3))
print(3-2.6)
from decimal import Decimal
d1 = Decimal('3')
d2 = Decimal('2.6')
print(d1-d2)
print(5/2)
print(5//2)
print("*"*20)

